Another Dinosaur Saturday

[Troodon]

The Royal Terrell Museum shared  a super specimen they collected and prepared of a Gorgosaurus that is the most complete juvenile tyrannosaur specimen discovered in Canada (and possibly even in North America).

 

 

The Museum of the Rockies gave the skull of Big Al, MOR 693, a much needed acetone bath, new coat of vinac & a new conservation cradle before going back on exhibit. Big Al is one of the most complete Allosaurus specimens in the world!

 

 

The most complete sauropod specimen known is CM 11338, a juvie Camarasaurus lentus.    Courtesy: Saurian Spence

 

A tyrannosaur tooth from the Campanian of Alberta,  NHM London

Check out remarks on label 

 

 

Allosaurus snoot, very cool. Check out those pretty, jet black dagger teeth w serrations. From ROM toronto collections, Late Jurassic, Cleveland-Lloyd Quarry, Utah.  Big chompers

 

 

The holotype of Styracosaurus albertensis (CMN 344) at the Museum of Nature. This centrosaurine ceratopsian dinosaur was collected by Sternberg in Alberta (in what's now Dinosaur Provincial Park), and named by Lambe in 1913

 

 

More Gorgosaurus, Healed bite marks in fossilized tyrannosaur skulls suggest they regularly engaged in face-biting behaviour. This Gorgosaurus upper jaw is an extreme example, with five raised scars.  Look at the size of that back tooth .. thats a 10cm scale, who said Gorgo teeth were small.  Makes me rethink how large these teeth got +3" does not appear unrealistic 

@-Andy-

 

 

A ornithopod cutie Weewarrasaurus, described from a stunning piece of colourful opalized jawbone from Down Under.  Thanks John Pickrell

 

 

 

 

[Troodon]

Tyrannosaurid tooth from the north slope of Alaska, now is that not COOL , courtesy Alessandro Chiarenza

 

Here’s a BIG Daspletosaurus tooth. From our quarry in the Oldman Formation of southern Alberta, ROM, David Evans 

 

Ngwevu intloko is very small and a genus of massospondylid sauropodomorph dinosaur from the Lower Jurassic Elliot Formation of South Africa.  Thanks to Josh Luke Davis

 

Trex versus Saber Cat

 

 

NHM_London:

"I bring you the type and only specimen of the earliest-known tyrannosauroid, Proceratosaurus, a small, but effective-looking, carnivore that roamed the UK 100 million years before T. rex evolved"

 

 

And whats the holiday season without a Stegosaurs in your front lawn, you can keep the snow, thanks Cary Woodruff

 

 

[Shamalama]

Thank you for posting these cool photos!  I have questions and comments,

 

 

A fantastic example of the neck ligament contracting after death.

1 hour ago, Troodon said:

The Royal Terrell Museum shared  a super specimen they collected and prepared of a Gorgosaurus that is the most complete juvenile tyrannosaur specimen discovered in Canada (and possibly even in North America).

 

 

Very cool to see how they support these delicate fossils and manage to keep it hidden from view!

1 hour ago, Troodon said:

The Museum of the Rockies gave the skull of Big Al, MOR 693, a much needed acetone bath, new coat of vinac & a new conservation cradle before going back on exhibit. Big Al is one of the most complete Allosaurus specimens in the world!

 

 

Where was this found and is it mounted in life position or as it was found? How much is replica (I can see a section of the tail near the base looks to be filler).

1 hour ago, Troodon said:

The most complete sauropod specimen known is CM 11338, a juvie Camarasaurus lentus.    Courtesy: Saurian Spence

 

 

 

In these pics, what are the pits in the bone of the jaw? Nerve or vein pathways or possible sensory pits or something?

1 hour ago, Troodon said:

 

 

Allosaurus snoot, very cool. Check out those pretty, jet black dagger teeth w serrations. From ROM toronto collections, Late Jurassic, Cleveland-Lloyd Quarry, Utah.  Big chompers

 

 

 

 

 

More Gorgosaurus, Healed bite marks in fossilized tyrannosaur skulls suggest they regularly engaged in face-biting behaviour. This Gorgosaurus upper jaw is an extreme example, with five raised scars.  Look at the size of that back tooth .. thats a 10cm scale, who said Gorgo teeth were small.  Makes me rethink how large these teeth got +3" does not appear unrealistic 

@-Andy-

 

 

 

 

 

Thanks!

[Troodon]

2 hours ago, Shamalama said:

 

 

Very cool to see how they support these delicate fossils and manage to keep it hidden from view!

that is always neat to see...

Quote

 

Where was this found and is it mounted in life position or as it was found? How much is replica (I can see a section of the tail near the base looks to be filler).

CM in the ID stands for Carnegie Museum   

. It is displayed as a relief mount almost exactly as it was discovered, with two exceptions. The left leg was swapped with a more complete one from another individual, and the tail was re-positioned to create a more aesthetically pleasing mount.  Believe it was found in Utah at Dinosaur National Monument 

check out link

 http://ix.cs.uoregon.edu/~kent/paleontology/sauropods/Camarasaurus/CM11338/index.html

Quote

 

In these pics, what are the pits in the bone of the jaw? Nerve or vein pathways or possible sensory pits or something?

 

 

probably all of those

All about  Maxillas

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0088905

[RJB]

  Some really cool stuff.  I would love to prep out something like MOR 693

 

RB

[Masp]

I love seeing all of these incredible specimens in one post like this...all so cool...thanks for sharing. 

[Ruger9a]

Great!  Thanks for posting these super nice photos.

[dinosaur man]

Thanks @Troodon I heard that it took a decade to prep that almost complete Gorgosaurus skeleton!! Amazing specimens!!.

[-Andy-]

Incredible fossils! Thanks for sharing. Shows just how little we collectors know about tyrannosaurs

[Troodon]

16 hours ago, dinosaur man said:

Thanks @Troodon I heard that it took a decade to prep that almost complete Gorgosaurus skeleton!! Amazing specimens!!.

Think it was 6 months is closer to the truth at least that what fhe RTMP Facebook page says

 

Very cool prep video

 

https://fbwat.ch/1CC38xLv25g5lRK2

 

@jpc @RJB

[Troodon]

54 minutes ago, -Andy- said:

Shows just how little we collectors know about tyrannosaurs

Very true why we should focus on published facts and not what is folklore or other collectors or dealers tell us is fact.

[dinosaur man]

Sorry @Troodon it took them a decade to excavate and prep it together, miss read sorry.

[dinosaur man]

Sorry @Troodon it took them a decade to excavate and prep it together, miss read sorry.

[doushantuo]

ngw

version "lowres",about 55 MB

 

Ngwevu intloko: a new early sauropodomorph dinosaur from the Lower Jurassic Elliot Formation of South Africa and comments on cranial ontogeny in Massospondylus carinatus Kimberley E.J. Chapelle, Paul M. Barrett, Jennifer Botha and Jonah N. Choiniere

Submitted 25 March 2019 Accepted 3 June 2019 Published 5 August 2019 Corresponding author Kimberley E.J. Chapelle, kimi.chapelle@gmail.com Academic editor Fabien Knoll Additional Information and Declarations can be found on page 55 DOI 10.7717/peerj.7240 Copyright 2019 Chapelle et al. Distributed under Creative Commons CC-BY 4.0

(structural geology(defomation/taphonomy/sexual dimorphism/(compsrative)osteology)

Age asessment: the specimen would have been 10 years old at the time of death

[doushantuo]

ezcurrpgaA_robust_sauropodomorph_specimen_from_th.pdf

A robust sauropodomorph specimen from the Upper Triassic of Argentina and insights on the diversity of the Los Colorados Formation
Martin D. Ezcurra , Cecilia Apaldetti

Proc.Geol.Assoc.,2011

[RJB]

I found it funny and interesting how they had a mobile lamp to drag around with them while prepping.   That would be a rather large prep job for me but would be a ton of fun. Thanks Troodon.

 

RB

[FossilNerd]

On 12/14/2019 at 6:56 AM, Troodon said:

The holotype of Styracosaurus albertensis (CMN 344) at the Museum of Nature. This centrosaurine ceratopsian dinosaur was collected by Sternberg in Alberta (in what's now Dinosaur Provincial Park), and named by Lambe in 1913

 

 

 

I know most people are drooling over the carnivore fossils, but this one caught my eye. I love ceratopsians! 
 

Thanks for sharing! 

[jpc]

Here is one for the troops.  This is Nicole, the Torosaurus recently unveiled at the Tate Geological Museum where I work.  

 

One of my volunteers spent the better part of three years prepping this thing.  We only found the skull, but it is one of only 7 or so good Torosaurus skulls known.  The photo is from this article.

https://oilcity.news/general/2019/10/24/tate-offers-taste-of-t-rex-treat-torosaurus-skull-revealed-photos2/

 

The mount was done by Triebold Paleontology.

[Troodon]

20 minutes ago, jpc said:

Here is one for the troops.  This is Nicole, the Torosaurus recently unveiled at the Tate Geological Museum where I work.  

 

One of my volunteers spent the better part of three years prepping this thing.  We only found the skull, but it is one of only 7 or so good Torosaurus skulls known.  The photo is from this article.

https://oilcity.news/general/2019/10/24/tate-offers-taste-of-t-rex-treat-torosaurus-skull-revealed-photos2/

 

The mount was done by Triebold Paleontology.

Very cool a Torosaurus, not many around congrat.   Any teeth found at the dig site?  

[jpc]

23 minutes ago, Troodon said:

Very cool a Torosaurus, not many around congrat.   Any teeth found at the dig site?  

two maxillae full of teeth and many loose ones.  

[Troodon]

4 minutes ago, jpc said:

two maxillae full of teeth and many loose ones.  

Nice, have you had much success collecting in Natrona County?  

[fossilsonwheels]

Those are some seriously awesome and beautiful fossils !!!! Thank you posting all of this Frank

[jpc]

4 hours ago, Troodon said:

Nice, have you had much success collecting in Natrona County?  

a little bit... including this skull.